Home / 11,718.87-16,172.04-6,413.68

Finding the Fourth Proportional to 11,718.87, 16,172.04 and 6,413.68

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Solution

The fourth proportional to 11,718.87, 16,172.04 and 6,413.68 is: 8,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.87 : 16,172.04 = 6,413.68 : x
  2. Step 2: Convert to fraction form
    11,718.87/16,172.04 = 6,413.68/x
  3. Step 3: Cross multiply
    11,718.87x = 16,172.04 × 6,413.68
  4. Step 4: Simplify right side
    11,718.87x = 103,722,289.51
  5. Step 5: Solve for x
    x = 103,722,289.51/11,718.87
  6. Step 6: Final answer
    x = 8,850.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.